Fuse data reading circuit having multiple reading modes and related devices, systems and methods

A method of reading fuse data within a semiconductor device, comprising:

• enabling a fuse data reading operation in response to application of a voltage external to the semiconductor device;
• reading fuse data under a first sensing condition for sensing the fuse data in a first mode;
• entering a second mode of the fuse data reading operation;
• and
• reading the fuse data under a second sensing condition for sensing the fuse data when the fuse data reading operation enters the second mode,
• wherein the first sensing condition for sensing the fuse data in the first mode is different from the second sensing condition for sensing the fuse data in the second mode.

A method of operating a semiconductor device, comprising:

• after power is applied to the semiconductor device, as part of a power-up sequence:
• receiving first data read from a fuse array during a first mode of the first semiconductor device with first sensing conditions;
• then, receiving second data read from the fuse array during a second mode of the first semiconductor device with second sensing conditions, the second sensing conditions being different from the first sensing conditions;
• and
• then, controlling operation of the first semiconductor device in response to the received first and second data.